Improvement in pitman-connections



YUNIITED STATES PATENT OFFICE.

SYLVESTER B. HOWARD, OF GILMAN, ILLINOIS.

. IMPROVEMENT IN PITMAN'CONNECTIONS.

Specification forming part of Letters PatentNo. 168,254, dated September -28, 1875; application filed July 31, 1875.

- To allwhom it may concern:

Be it known that I, SYLV'ESTER B. How- AR]I ),'0f Gilrnan, in the county of Iroquois and State of Illinois, have invented a new and valuablelmprovementin Hinge and Oouplin gs;

and I do hereby declare that the following is a full, clear, and exact description of the construction and operation 'of the same, refer- .ence being had to the annexed drawings,

making a part'of this specification, and to the letters and figures of reference marked thereture of the invention consists in a'segmental enlargement, which is notched and perforated,

, in combination with a pivot and a hooking portion, as will be hereinafter explained.

In the annexed drawings I have represent ed my invention applied-to a pitman-rod and sickle-bar for reapers and mowers.

A designates a-sickle-bar,on the inner end of which is formed a segment, B, terminating 'at the inner extremity of the bar A in a shoulder, a. An eye, b, is made through the segment B and just above this eye a rectangnlar notch, c, is made in the segment, for a purpose hereinafter explained. G designates x the pitman-rod, one end of which is enlarged laterally and constructed, with a'pivot, d, and

a hook, e. The pivot d is at right angles to the length of the pitman-rod O and is insertedthrough the hole or eye 12 and the hooking portion 0 is in line with the pitman-rod and overlaps the segment B, as shown in Fig. 1.

The pitman-rod is attached to the sicklebar by holding the frame in a position per pendicular to the latter and inserting the pivot at through its eye, and the'tongue or hook ethrough the notch 0. The sickle-bar is then brought down into working position, in which position the hook e overlaps the inner portion of the segment B, and safely retains the pivot in its 'placeat the same time prevents the parts from binding.

It is obvious that my invention is applicable wherever a lockjoint is desired, such, for instance, as to gate-hinges, blind-hinges, couplings for shafts, &c.

I am aware that a pitman-connection for harvesters has heretofore been employed, in which a .lip overhangs the head and prevents the displacement of the pitman when it works, as shown in United States Letters Patent, dated January 14,1873, No. 134,954, and I, therefore, lay'no claim to such invention.

What I claim, and desire to secure by Letters Patent, is

The sickle-bar A, having the segment B, notch c, and stop a, in combination with the pitman 0, provided with the recessed head,

pintle d, and hook e, substantially as described, and for the purpose set forth.

In testimony that I claim the above I have hereunto subscribed my name in the presence of two witnesses.

SYLVESTER B. HOWARD.

Witnesses JOHN D. LELAND, W. P. GARDNER. 

